Yamaguchi weather
Today's sky, the hour-by-hour rain chance and the 16-day forecast for Yamaguchi, Japan. Like most weather services, we show Yamaguchi at one spot: Shimonoseki, its largest city. At 7:30 AM local time it was clear and 15°C (59°F). Mostly light, on-and-off rain; heavier around 4 AM, 5 AM, 6 AM (9.8 mm total). Best months for weather: May, Oct–Nov.
Current conditions
- Clouds
- 0%
- Chance of rain
- 0%
- Rain
- 0.0 mm/h
Hourly Forecast
Mostly light, on-and-off rain; heavier around 4 AM, 5 AM, 6 AM (9.8 mm total)
Daily Forecast
Best Time to Visit
Peak season May, Oct–NovOff season Jun–Jul, Jan–Mar
About Shimonoseki weather
Is it raining in Shimonoseki right now?
No. It’s clear and 15° right now. Mostly light, on-and-off rain; heavier around 4 AM, 5 AM, 6 AM (9.8 mm total).
What’s the weather like in Shimonoseki this week?
Over the next 7 days, expect highs of 17–22° and lows of 11–18°. Rain is likely on 3 of 7 days (Monday, Thursday, Friday). The driest day looks like Sunday.
Has it been raining in Shimonoseki lately?
In the past 7 days, Shimonoseki had 4 rainy days and 99.8 mm of rain in total.
What should I pack for Shimonoseki?
For the coming week, bring an umbrella or rain jacket and a warm layer for the evenings.
Yamaguchi weather by month
When is the best time to visit Yamaguchi?
Based on weather alone, the best time to visit Yamaguchi is May, Oct–Nov, according to NASA's 2001–2025 climate averages. Jun–Jul, Jan–Mar tends to be the least pleasant. Average highs run from 9°C (49°F) in January to 29°C (85°F) in August.
What is the rainiest month in Yamaguchi?
July is the wettest month, with about 340 mm (13.4 in) of rain on average. January is the driest, with about 77 mm (3.0 in).
What is the hottest month in Yamaguchi?
August is the warmest, with average highs of 29°C (85°F) and lows of 25°C (78°F). January is the coolest, with highs of 9°C (49°F) and lows of 6°C (42°F).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis for Shimonoseki), forecast and current conditions from Open-Meteo. Page updated . How we rate months
Compare places in Yamaguchi
Weather can differ a lot within Yamaguchi: coasts, hills and mountains each have their own climate.
| Place | Best months | Rainy months | Highs | Rain a year |
|---|---|---|---|---|
| Shimonoseki | May, Oct–Nov | May–Sep | 9–29°C | 1,859 mm |
| Yamaguchi | May, Oct–Nov | May–Sep | 8–30°C | 1,822 mm |
| Ube | May, Oct–Nov | May–Sep | 8–30°C | 1,822 mm |
| Shūnan | May, Aug, Oct–Nov | May–Sep | 8–29°C | 1,696 mm |
| Iwakuni | May, Aug, Oct–Nov | May–Jul, Sep | 9–30°C | 1,621 mm |
| Hōfu | May, Aug, Oct–Nov | May–Sep | 8–29°C | 1,696 mm |
| Tokuyama | May, Aug, Oct–Nov | May–Sep | 8–29°C | 1,696 mm |
| Sanyōonoda | May, Oct–Nov | May–Sep | 8–30°C | 1,822 mm |
| Kudamatsu | May, Aug, Oct–Nov | May–Sep | 8–29°C | 1,696 mm |
| Hikari | May, Aug, Oct–Nov | May–Sep | 8–29°C | 1,696 mm |
| Hagi | May, Oct–Nov | May–Sep | 9–29°C | 1,829 mm |
| Onoda | May, Oct–Nov | May–Sep | 8–30°C | 1,822 mm |